CONVERTISSEUR ELEVATEUR DE FREQUENCE/MODULATEUR

A multi-channel digital transceiver (400) receives uplink radio frequency signals and converts these signals to digital intermediate frequency signals. Digital signal processing, including a digital converter module (426), is employed to select digital intermediate frequency signals received at a pl...

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Bibliographische Detailangaben
Hauptverfasser:	PINCKLEY DANNY THOMAS, LUZ YUDA YEHUDA, KOBRINETZ TONY, RADER SHELIA MARIE, LAIRD KEVIN M, SMITH PAUL FIELDING, ROTTINGHAUS ALAN P, LUREY DANIEL MORRIS, SMITH JOHN M, ELDER ROBERT C
Format:	Patent
Sprache:	fre
Schlagworte:	ANTENNAS, i.e. RADIO AERIALS BASIC ELECTRIC ELEMENTS BASIC ELECTRONIC CIRCUITRY DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TOANOTHER ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY GENERATION OF NOISE BY SUCH CIRCUITS GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING,BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN ANON-SWITCHING MANNER MODULATION TRANSMISSION TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION WIRELESS COMMUNICATIONS NETWORKS
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Beschreibung
Zusammenfassung:	A multi-channel digital transceiver (400) receives uplink radio frequency signals and converts these signals to digital intermediate frequency signals. Digital signal processing, including a digital converter module (426), is employed to select digital intermediate frequency signals received at a plurality of antennas (412) and to convert these signals to baseband signals. The baseband signals are processed to recover a communication channel therefrom. Downlink baseband signals are also processed and digital signal processing within the digital converter module (426) up converters and modulates the downlink baseband signals to digital intermediate frequency signals. The digital intermediate frequency signals are converted to analog radio frequency signals, amplified and radiated from transmit antennas (420).